KR950000181B1 - Injection stretching blow molding of polypropylene or the like - Google Patents

Injection stretching blow molding of polypropylene or the like Download PDF

Info

Publication number
KR950000181B1
KR950000181B1 KR1019880700855A KR880700855A KR950000181B1 KR 950000181 B1 KR950000181 B1 KR 950000181B1 KR 1019880700855 A KR1019880700855 A KR 1019880700855A KR 880700855 A KR880700855 A KR 880700855A KR 950000181 B1 KR950000181 B1 KR 950000181B1
Authority
KR
South Korea
Prior art keywords
opening
polypropylene
molded
injection
blow molding
Prior art date
Application number
KR1019880700855A
Other languages
Korean (ko)
Other versions
KR890700073A (en
Inventor
가따시 아오끼
Original Assignee
아오끼 시게또
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 아오끼 시게또 filed Critical 아오끼 시게또
Publication of KR890700073A publication Critical patent/KR890700073A/en
Application granted granted Critical
Publication of KR950000181B1 publication Critical patent/KR950000181B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B29C2949/0725—Preforms or parisons characterised by their configuration having variable wall thickness at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0771—Wide-mouth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles
    • B29L2031/716—Bottles of the wide mouth type, i.e. the diameters of the bottle opening and its body are substantially identical

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

내용 없음.No content.

Description

[발명의 명칭][Name of invention]

폴리프로필렌등의 사출 연신 취입 성형법Injection drawing blow molding methods such as polypropylene

[도면의 간단한 설명][Brief Description of Drawings]

제 1, 2 도는 본 발명에 의한 사출 연신 취입 성형법을 보인 것으로 ; 제 1 도는 예비 성형품의 단면도.1 and 2 show the injection stretch blow molding method according to the present invention; 1 is a cross-sectional view of the preform.

제 2 도는 성형품의 단면도.2 is a cross-sectional view of the molded article.

제 3 도는 종래의 성형품에 의한 성형품의 반을 종단면도로 나타낸 것.3 is a longitudinal sectional view of a half of a molded article by a conventional molded article.

[발명의 상세한 설명]Detailed description of the invention

[기술분야][Technical Field]

본 발명은 폴리프로필렌, 폴리아미드등의 합성수지 물질로 리셉터클, 병등의 성형품을 사출 연신 취입 성형시키는 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injection stretching blow molding molded articles such as receptacles and bottles with synthetic resin materials such as polypropylene and polyamide.

[발명의 배경][Background of invention]

일반적으로 사출 연신 취입 성형시에는 바닥이 있는 사출 성형된 예비 성형품의 개구부가 유지 고정되고 나머지 부분이 연신 취입 성형된다.In general, in the case of injection stretch blow molding, the opening of the bottomed injection molded preform is maintained and fixed, and the remaining portion is stretch blow molded.

이 경우 성형품의 재료로 이용되는 수지가 폴리프로필렌, 폴리아미드등의 유백화되기 쉬운 합성 수지이면 연신 취입 성형된 부분은 이축 연신되므로 투명해지지만 성형품(20)의 개구부(21)로부터 연결부(22)까지의 부분은 제 3 도에 도시된 바와 같이 유백색으로 된다.In this case, if the resin used as the material of the molded article is a synthetic resin which is easy to be whitened, such as polypropylene and polyamide, the stretch blow-molded portion is biaxially stretched and thus becomes transparent, but is connected to the connecting portion 22 from the opening 21 of the molded article 20. The portion up to becomes milky white as shown in FIG.

유백색(23)의 하부 가장자리는 대부분 연결부에서 불규칙하게 나타나고, 이 때문에 성형품의 외관이 불량해져서 상품의 가치를 반감시키게 된다.The lower edges of the milky white 23 appear irregularly at most of the joints, which causes the appearance of the molded product to be poor, thereby reducing the value of the product.

본 발명자는 이러한 점을 고려하여 성형품의 연결부(22)에 생기는 유백부(23)의 발생 원인에 대하여 여러 가지로 반복 연구한 결과, 이는 개구부의 하측의 연신으로 인한 것이며 상기 부분의 아래 부분이 충분히 연신되며 유백부(23)가 개구부(21)에만 나타나게 된다는 것을 발견하였다.In view of this, the present inventors have repeatedly studied the cause of the milky white portion 23 occurring in the connecting portion 22 of the molded article, which is due to the stretching of the lower side of the opening, and the lower portion of the portion is sufficiently It was discovered that the milky white portion 23 was shown only in the opening 21 while being stretched.

[발명의 개요]Overview of the Invention

본 발명의 한가지 목적은 폴리프로필렌, 폴리아미드등의 유백화되기 쉬운 수지 재료를 이용하여 사출 연신 취입 성형되는 성형품에 관한 상기 문제를 해결하는 것이다.One object of the present invention is to solve the above-mentioned problem regarding a molded article which is injection stretch blow molded using a resin material which is easy to whiten such as polypropylene and polyamide.

상기 목적을 달성하기 위한 본 발명의 특징은 바닥을 가진 예비 성형품을 개구부의 주벽 하부의 두께가 그 내측으로 형성된 단에 의하여 다른 연신부보다 두껍게 되도록 사출 성형시키고, 상기 예비 성형품의 개구부를 잡고 고정시켜 상기 단의 하부를 연신 취입 성형시키는 것이다.A feature of the present invention for achieving the above object is injection molding so that the thickness of the lower part of the circumferential wall of the opening is thicker than other stretched portions by the end formed inwardly, and holding and fixing the opening of the preform The lower part of the said stage is stretch blow-molded.

[발명의 최상 실시 형태]Best Embodiment of the Invention

먼저, 제 1 도에 도시된 바와 같이 개구부(1)의 하부에서 내측으로 단(2)이 형성되고 바닥이 있는 예비 성형품(3)이 사출 성형된다. 개구부의 주벽의 하부(4)의 벽 두께는 상기 단(2)의 존재로 인하여 개구부(1) 및 바닥(6)의 두께보다 두껍다.First, as shown in FIG. 1, a stage 2 is formed from the lower part of the opening 1 to the inner side, and the bottom-shaped preform 3 is injection molded. The wall thickness of the lower part 4 of the circumferential wall of the opening is thicker than the thickness of the opening 1 and the bottom 6 due to the presence of the end 2.

개구 금형(7) 및 사출 금형(8)과 함께 공동부를 형성시키는 코어 금형(7)의 하부 둘레에 단(10)를 형성시킴으로써 용이하게 단(2)을 형성시킬 수 있다.The stage 2 can be easily formed by forming the stage 10 around the lower periphery of the core mold 7 forming the cavity together with the opening mold 7 and the injection mold 8.

그 후, 제 2 도에 도시된 바와 같이 개구부는 취입 코어(11)를 삽입시켜 단(2)의 위치에서 유지 고정되고, 개구부의 하부 및 바닥은 단(2)으로부터 취입 금형(12)의 공동부 바닥까지 로드(13)에 의하여 연신되며, 예비 성형품(3)을 중공 성형품(14)으로 성형시키기 위하여 공기가 취입되어 공동부를 충분히 팽창시키게 된다.Thereafter, as shown in FIG. 2, the opening is held and fixed at the position of the stage 2 by inserting the blowing core 11, and the lower part and the bottom of the opening have a cavity of the blowing mold 12 from the stage 2; Stretched by the rod 13 to the bottom of the part, air is blown to mold the preform 3 into the hollow molded part 14 to sufficiently inflate the cavity.

상기 연신 과정에서, 가장 용이하게 연신되는 부분은 개구부의 주벽의 하부(4)의 다른 부분보다 두껍게 된 부분이다.In the stretching process, the most easily stretched portion is a portion thicker than the other portions of the lower portion 4 of the circumferential wall of the opening.

연신될 부분 중 다른 부분보다 두껍게 되어 있는 개구부 하부의 주벽의 하부(4)는 다른 부분보다 보유 열량이 커서 연신 취입 성형 과정에서 온도가 떨어지더라도 상기 부분의 두께가 다른 부분과 같게 된 경우보다 열 손실이 적어 단(2)를 경계부로 하는 이 부분은 양호하게 연신된다.The lower portion 4 of the circumferential wall below the opening portion, which is thicker than the other portion of the portion to be stretched, has a greater heat retention than other portions, so that even if the temperature drops during the stretch blow molding process, the thickness of the portion becomes less than that of other portions. This portion, which is less than the edge 2, is stretched well.

그 결과 단(2)의 하부가 연신 취입 성형에 의하여 2축 연신되므로 개구부(1) 이외의 부분이 투명해진다. 유백부는 도시된 바와 같이 단(2)를 경계부로 하는 개구부의 하부의 투명부와 뚜렷이 구별되고 유백부의 하부 가장자리는 이 단 이상으로 연장되지 않는다.As a result, since the lower part of the stage 2 is biaxially stretched by stretch blow molding, parts other than the opening part 1 become transparent. The milky milky part is clearly distinguished from the transparent part of the lower part of the opening bordering the stage 2 as shown, and the lower edge of the milky milky milk portion does not extend beyond this stage.

이상 기술된 실시예에서는 유백부와 투명부의 경계가 직선으로 되어 있지만 단(2)의 벽 두께를 파형으로 성형시키면 상기 2부분 사이의 경계도 파형으로 된다. 따라서, 본 발명에서 단(2)의 형상은 도시된 것처럼 직선으로 제한되지 않는다.In the above-described embodiment, the boundary between the milky part and the transparent part is a straight line. However, when the wall thickness of the stage 2 is formed into a wave shape, the boundary between the two parts also becomes a wave shape. Therefore, in the present invention, the shape of the stage 2 is not limited to the straight line as shown.

[산업상 이용 가능성][Industry availability]

이상 설명한 바와 같이 본 발명에서는 개구부의 주벽의 하부의 두께가 내측으로 형성된 단에 의하여 다른 연신 부분보다 두껍게 형성되어 있으므로 개구부의 주벽 하부의 보유 열량이 증가하여 연신이 용이해지고 연신이 이루어지지 않음으로 인한 유백색 연결부의 형성이 방지된다. 그러므로 폴리프로필렌이나 폴리아미드가 재료로 이용되더라도 개구부만 유백색이 되도록 리셉터클등을 성형시킬 수 있고, 유백부와 투명부가 직선을 경계로 구분되어 외관이 우수한 성형품을 용이하게 성형시킬 수 있다. 따라서 이 성형품은 리셉터클로 매우 양호하고, 산업상 매우 효과적이며 널리 이용될 수 있다.As described above, in the present invention, since the thickness of the lower portion of the circumferential wall of the opening is formed thicker than other stretched portions by the end formed inwardly, the amount of heat retained in the lower portion of the circumferential wall of the opening increases, so that the stretching is easy and the stretching is not performed. The formation of the milky connection is prevented. Therefore, even if polypropylene or polyamide is used as a material, the receptacle and the like can be molded so that only the opening is milky white, and the milky part and the transparent part are separated by straight lines, thereby easily forming a molded article having excellent appearance. This molded article is therefore very good as a receptacle, very effective in industry and widely available.

Claims (3)

폴리프로필렌 또는 폴리아미드의 사출 연신 취입 성형법에 있어서, 바닥을 가진 예비 성형품을 개구부의 주벽 하부의 두께가 그 내측으로 수평하게 형성된 단에 의하여 다른 연신부보다 두껍게 되도록 사출 성형시키고, 상기 예비 성형품의 개구부를 잡고 고정시켜 상기 단의 하부를 연신 취입 성형시키는 성형법.In the injection stretch blow molding method of polypropylene or polyamide, the bottom-formed preform is injection-molded so that the thickness of the lower part of the circumferential wall of the opening is thicker than other stretched portions by a stage formed horizontally inwardly thereof, and the opening of the preform A molding method of stretching and molding the lower end of the end by holding and fixing. 제 1 항에 있어서, 연신 취입 성형되는 폴리프로필렌 또는 폴리아미드의 성형품은 개구부가 유백색인 투명한 리셉터클 또는 병인 성형법.2. The molding method according to claim 1, wherein the molded article of polypropylene or polyamide to be stretch blow molded is a transparent receptacle or a bottle whose opening is milky white. 제 1 항에 있어서, 개구부의 유백부가 본체의 투명부로부터 경계에 의하여 명확히 분리되는 성형법.The molding method according to claim 1, wherein the milky part of the opening part is clearly separated from the transparent part of the main body by a boundary.
KR1019880700855A 1986-11-20 1987-11-19 Injection stretching blow molding of polypropylene or the like KR950000181B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP?61-277307 1986-11-20
JP61277307A JPS63130330A (en) 1986-11-20 1986-11-20 Injection stretching blow molding method for polypropylene
PCT/JP1987/000897 WO1988003864A1 (en) 1986-11-20 1987-11-19 Injection stretching blow molding of polypropylene or the like

Publications (2)

Publication Number Publication Date
KR890700073A KR890700073A (en) 1989-03-02
KR950000181B1 true KR950000181B1 (en) 1995-01-11

Family

ID=17581713

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880700855A KR950000181B1 (en) 1986-11-20 1987-11-19 Injection stretching blow molding of polypropylene or the like

Country Status (6)

Country Link
EP (1) EP0293485B1 (en)
JP (1) JPS63130330A (en)
KR (1) KR950000181B1 (en)
AU (1) AU602380B2 (en)
DE (1) DE3752276T2 (en)
WO (1) WO1988003864A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04166663A (en) * 1990-10-31 1992-06-12 Isuzu Motors Ltd Starting control device for vehicle equipped with automatic transmission
JP2001121598A (en) 1999-10-29 2001-05-08 Aoki Technical Laboratory Inc Method for stretch blow molding of wide-mouthed vessel
WO2007046998A1 (en) * 2005-10-14 2007-04-26 Exxonmobil Chemical Patents Inc. Methods for stretch blow molding polymeric articles
CN102189670A (en) * 2010-03-13 2011-09-21 台州市天雅机械模具有限公司 Processing mould for stretching and blowing twice of 5-gallon bucket
GB2525651B (en) * 2014-05-01 2018-08-08 Gr8 Eng Ltd Blow moulded container and manufacture thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU527922B2 (en) * 1977-12-23 1983-03-31 Emhart Industries Inc. Blow moulding parison
JPS5836420A (en) * 1981-08-27 1983-03-03 Yoshino Kogyosho Co Ltd Method of molding bottle
CA1184717A (en) * 1981-08-20 1985-04-02 Yoshiaki Hayashi Blow-molded bottle-shaped container of biaxially oriented polyethylene terephthalate resin and method of molding the same
JPS5836121U (en) * 1981-09-02 1983-03-09 株式会社吉野工業所 Primary molded product for biaxially stretched blow molded bottle molding
JPS5850926U (en) * 1981-10-01 1983-04-06 株式会社吉野工業所 Primary molded product for wide mouth bottle molding
AU571000B2 (en) * 1983-02-02 1988-03-31 Nissei Asb Machine Co., Ltd. Biaxial orientation of bottles
US4641758A (en) * 1983-11-22 1987-02-10 Yoshino Kogyosho Co., Ltd. Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port and method of molding the same

Also Published As

Publication number Publication date
DE3752276D1 (en) 1999-07-08
AU8327387A (en) 1988-06-16
EP0293485B1 (en) 1999-06-02
WO1988003864A1 (en) 1988-06-02
EP0293485A1 (en) 1988-12-07
DE3752276T2 (en) 1999-12-16
EP0293485A4 (en) 1989-06-26
JPH059258B2 (en) 1993-02-04
KR890700073A (en) 1989-03-02
JPS63130330A (en) 1988-06-02
AU602380B2 (en) 1990-10-11

Similar Documents

Publication Publication Date Title
US4439393A (en) Method of producing synthetic resin bottle with handle
US4406854A (en) Method of molding a bottle-shaped container of synthetic resin
US5101990A (en) Stretch blow molded oblong or oval container
JPS5852913Y2 (en) Intermediate material for biaxially stretched synthetic resin bottle molding
KR870007822A (en) Hollow synthetic resin container with handle and its molding method
KR100441478B1 (en) Injection-drawing blow molding method of hollow molded article
US5529195A (en) Blow molded plastic container and method
US4395378A (en) Method for making an injection stretch blow molded container with an integral tab
JPH01166930A (en) Manufacture of blow molded vessel from thermoplastic polyester
BR9611651A (en) Process for making a container, container
KR950000181B1 (en) Injection stretching blow molding of polypropylene or the like
US4280630A (en) Container with handle
JPH0236922A (en) Manufacture of blow-molded vessel made of plastic
US6666346B2 (en) Blow molded plastic container with inclined mouth and method and apparatus for obtaining same
US6730259B1 (en) Method for stretch blow molding wide-mouthed container
JPH0677958B2 (en) Injection blow molding method for synthetic resin containers
JPH03268907A (en) Plastic bottle with handle, its preform and manufacture of plastic bottle with handle
JPH0286424A (en) Molding method for deformed hollow container
US4276986A (en) Bottle made of saturated polyester resin
KR910002381B1 (en) Crystallizatin method for neck part of receptacle
JPH0719783Y2 (en) Plastic container
JPH0365247B2 (en)
JPS6342834A (en) Molding of vessel
JPS6311218B2 (en)
JPH03202336A (en) Plastic preparatory molding and manufacture of container using same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20051125

Year of fee payment: 12

LAPS Lapse due to unpaid annual fee